Specifications for the KR1 can be found at the Rand Robinson web site http://www.fly-kr.com/ Ken Rand designed and built the original KR1 and KR2. They have the official specifications for the planes as well as sell plans and parts.
Orma Southfield, MI N110LR Tweety, old enough to drink this year Flying and more flying, to the gathering or bust http://www.kr-2.aviation-mechanics.com/